The couple has not named the designer of Lavigne’s stunning rock, but it appears to be a large (read: it spans from knuckle-to-knuckle) teardrop diamond, surrounded by two smaller diamonds on either side.

Speaking with HELLO! Canada, the Canadian duo opened up for the first time about their whirlwind courtship. According to a rep for the “Complicated” singer, Kroeger popped the question on Aug. 8.

“I knew I was falling for her,” Kroeger said of working with Lavigne. “It was incredibly powerful and something I’ll never forget.”

The couple reportedly met in February while Kroeger was working on Lavigne’s upcoming fifth studio album. At the time, Lavigne and longtime beau Brody Jenner had recently called it quits.